foreword
US /ˈfɔːr.wɝːd/
UK /ˈfɔːr.wɝːd/

1.
a short introduction to a book, typically by a person other than the author
:
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The book includes a foreword by a renowned historian.
•
She wrote a heartfelt foreword for her friend's debut novel.
a short introduction to a book, typically by a person other than the author